无损检测工艺规程液体渗透模板.docx

1、无损检测工艺规程液体渗透模板无损检测工艺规程液体渗透模板NJBST Co.,Ltd.QCD-015Rev.:0Page: 1 of 8Title: PROCEDURE FOR LIQUID PENETRANT EXAMINATIONPROCEDURE FOR LIQUID PENETRANT EXAMINATION液体渗透检验工艺规程CONTROLLED 在控木口 UNCONTROLLED 非在控本口 COPY NO副本编号：PREPARED BY 编制： DATE 日期：REVIEWED BY 审核： DATE 日期：APPROVED BY 批准： DATE 日期：NJBST Co.,Ltd

2、. QCD-015 Rev.:0 Page:2 of 8Title: PROCEDURE FOR LIQUID PENETRANT EXAMINATIONDEMONSTRATION CERTIFICATIONThis is to certify that this procedure has been demonstrated on a test specimen with known defects to the satisfaction of the Authorized Inspector according to ASME Code Section V, T-150 as requir

3、ed by the Section VI Div.l, Appendix &Test Specimen No.:Demo. Report No.:NDE Level III:Al:NJBST Co.,Ltd.QCD-015Rev.:0Page: 3 of 8Title: PROCEDURE FOR LIQUID PENETRANT EXAMINATION制i告厂材料悭号匕海沪渗诱剂HD-RS船助剂拜像剂HD-XS厂 沪洗剂HD-B1 概述11本规程适用于ASME规范产品金 属材料和焊件着色液体渗透检验。1. 2本规程仅适用于探测材料或焊件 表而开口类缺陷。1.3本规程在执行之前，须演示至AI

4、满意。2.人员2从事液体渗透检验的人员必须是 根据南京左色钛业有限公司NDE人 员培训、考试、资格认证实施细 则（资料号:QCD-011）进行考试和资 格任命的合格人员。3.渗透材料1 General1.1This procedure is applied to dye liquid penetrant examination of metal material and weldment for ASME Code items.1.2This procedure is only suitable for detecting the defects that are open to the su

5、rface of material or weldment1.3This procedure shall be demonstrated to the satisfaction of Hie Al prior to implementation2. Personnel2.1 The personnel engaged in the penetrant examination shall be qualified and certified in accordance with the requirement of NJBST Co., Ltd，s Written Practice for ND

6、E Personnel Training Examination, Qualification and Certification(No.:QCD-011).3 Penetrant Materials3.1The penetrant materials is intended to include all penetrants, solvents or cleaning agents, developers, etc, used in the examination process3.2The liquid penetrant examination materials shall be de

7、signated and recommended, as shown in Table 32 The materia IntermiSurface Preparationbe the same type, different families ordifferent manufactureijs is not permittedTable ManuPrecleaning and Drying- - 重童S hanrPenetrant ApplicationHD-XS(Ship Brand) Deveh)perCleaningDryingnless steel or titanium, all3

8、渗透材料包括检验过程中使用的 所有渗透剂.溶剂或淸洗剂、显像剂 等。3.2液体渗透探伤材料,必须是指定的 和推荐的，见表3.2。检验使用的材料 必须是同一类型的。不允许用不同类 昆合使表而制备表3.2预淸洗，干燥施加渗透剂淸洁3 3岀檢胎奧忙休不铳俶诚紘材时必 干燥3.3M materials shall be ahalyzed individually for chlorine and fluorint 641(b)- fluorine- The ce obtainecE_3.4W analyze the procedure shown in 1-041(a) of Section V.Th

9、e sulphur content shall not exceed l%of the residue by weight The certificate of compliance from manufacturer shall be obtainedDevelopment and Inspection ie procedure shown in T-The total chlorine plus l.of the residue by weight.1 manufacturer shall be1(b)中 i和氟的GR 川1仙 H今自-木乞2超过残显像、检验LFJ T土, J，八；I “I

10、 甲 Tt* 八 ZTJ 八 I 刃勺 令卡柑应的VAXylmll nef pvEvaluation and Recordf1Post Cleaningall materials shall be ntent in accordance withTTffrUtoC A 、1二 I人“4角程序, 对加勺材科分I别分析疏含量“硫含量 须有制评泄、记录 /二1 丄 i J L - i后淸洗NJBST Co.,Ltd.QCD-015Rev.:0Page:4 of 8Title: PROCEDURE FOR LIQUID PENETRANT EXAMINATION4.检验程序4.1检验程序流程图见图4.

11、14. Examination Procedure4.1 Examination Flow Chart as shown in Fig.4.1.Fig. 4.14.2Surface PreparationPrior to all penetrant examination, the surface to be examined and all adjacent areas within at least lin (254mm) shall be dry and free of dirt, grease,lint, scale, welding flux, weld spatter, paint

12、, oil and other extraneous matte匚 If necessary, surface shall be prepared by grinding or machining4.3Precleaning431 The areas to be examined and adjacent areas within at least lin. (25.4mm) shall be cleaned using cleaning agent before the penetrant is applied4.3.2 After cleaning, drying of the surfa

13、ce to be examined shall be accomplished by normal evaporation or with forced air, as appropriate. The minimum drying time shall ensure that the cleaning solution has evaporated prior to application of the penetrant.4.4Penetrant Application4.4.1 The penetrant may be applied on the surface图44.2表面制备所有渗

14、透检验前，被检工件表而及其附近至 少为1英寸(25.4mm)的区域内都应干燥淸洗 干净，不得有任何脏物、纤维眉、氧化皮. 焊剂、汕和其它外来物*必要时，应对表面 进行打磨或机加工。4.3预淸洗4.3.1在施加渗透剂之前，被检区域及其附近 至少为1英寸(25.4mm)的区域内均需用淸洁 剂进行淸洗。4.3.2淸洗后，经过适当的方法(自然挥发或人 工通风)，对被检表面进行F燥;最少V燥的时 间以保证在施加渗透剂之前淸洁剂已完全挥 发为界。4.4施加渗透剂4.4.1能够用浸渍.涂刷或喷涂等任一合适 的方法，在被检工件NJBST Co.,Ltd.QCD-015Rev.:0Page:5 of 8Titl

15、e: PROCEDURE FOR LIQUID PENETRANT EXAMINATIONMaterial F)rm Dwell Times (Penetrant Developernin)Aluminum, magn- C esium. steel, brass or bronze, titanium V and high temperature alloys plateastings & welds 5iought material- extrusions, forgings,710 7me CAUiunicUiOu pioccuuic ui me lovvci 01 iiiiivr材料

16、3滞留时间!式 (mil)渗透剂显象齐J铝、離 钢、黄铜 青铜、钛 尚温合金铸件和焊缝轧材-挤压件段件.板材5 710 7足时，则按照ASME规范第V卷T- 653,对提议采用的温度范帀,使用有 淬火裂纹的铝试块进行验证。temperature range shall be qualified using a quench cracked aluminum block according to ASME Code Section V, T-653.4.4.3 Penetration time is critical. The minimum dwell time is shown in Tab

17、le 4.4.3 For suitable temperature, the area being examined shall remain wetted by the penetrant for the dwell time.Table 443 Recommended minimum dwell times4.5 Excess Penetrant Removal4.4.3严格控制渗透时间，最小滞留 时间见表443。适当的温度条件下, 在滞留时间内被检区域必须用渗透 剂保持潮湿。表4.4.3推荐的最少滞留时间4.5多余渗透剂的淸除多余渗透剂必须用布或吸纸擦去, 剩下的痕迹必须用蘸有溶剂的布或

18、Excess solvent removable penetrant shall be removed by wiping with a cloth or absorbent paper. The remaining traces shall be removed by lightly wiping the surface with a cloth or absorbent paper moistened with solvent. To avoid over removing, flushing the surface with solvent shall be prohibited4.6D

19、eveloper Application4.6.1The developer shall be applied as soon as possible after excess penetrant removal and drying surface The surface may be dried by normal evaporation before the developer is applied The drying time shall be within 5 to 20 min.4.6.2The developer shall be applied by spraying. A

20、uniform thin coating shall be provided and the coating thickness shall be suitable 4.6.3Prior to applying wet developer to the surface, the developer must be thoroughly agitated.4.6.4Dipping or flooding the part with non-aqueous developer is prohibited, since it will dissolve the penetrant in the di

21、scontinuities through its solvent action.4.7Interpretation4.7.1 Developing time for final interpretation begins纸在表而轻轻地擦去。为了防止淸 洗过分，禁止用溶剂淸洗表而。4.6施加显像剂4.6.1多余的渗透剂被淸除且工件干 燥后，必须尽快地施加显像剂。显像 剂施加之前，工件表而能够自然挥发 干燥，干燥时间必须在5-20分钟以 内。4.6.2施加显像剂必须采用喷涂法，薄 且均匀，涂层厚度适中。4.6.3在施加湿型显像剂至工件表而 之前，显像剂必须充分搅拌。4.6.4禁用非水湿显像剂浸渍

22、或灌洗 工件，因非水湿显像剂会经过溶解作 用将缺陷中的渗透剂溶解掉。4.7判断4.7.1最终判断显像时间应从施加NJBST Co.Ltd. QCD-015 Rev.:0 Page:6 of 8Title: PROCEDURE FOR LIQUID PENETRANT EXAMINATIONas soon as a wet developer coating is dry. The minimum developing time shall be 7min4.7.2Final interpretation shall be made within 7 to 60 min after the re

23、quirements of Para. 4.7.1 are satisfied.4.7.3The developing trace can be examined either by natural light or artificial light. A minumum light intensity of 50 fc (500Lx) is required to ensure adequate sensitivity during the examination and evaluation of indications.4.7.4The surface shall be divided

24、into several parts to be examined if the surface is so large that the examination can not be finished within the given time. The developing condition can be observed either by eyes or by means of a magnifier.4.8 Post-cleaningThe penetrant materials shall be clearly removed away from parts after exam

25、ination The post cleaning must be performed if remaining penetrant materials can result in corrosion by the combination with other materials during the operation.The suitable cleaning process shall be adopted for post cleaning such as flushing with water, mechanical cleaning, solvent soaking, etc.Th

26、e developer shall be cleaned as soon as possible after examination if the part requests the post cleaning so as to avoid it condensed on the part5. Evaluation of Indications5.1 Broad areas of pigmentation which could mask indications干显像剂后或从湿显像剂涂层干燥后 立即起算，不得少于7分钟。4.7.2在满足4.7.1要求后，最终判断 必须在760分钟内作出。4.7

27、.3显像痕迹能够经过自然光或人 工白光进行检验，要求最小灯光强度 为5Ofc(5OOLX),以保证在检验和评价 显示过程中有充分的灵敏度。4.7.4如果受检表而太大，无法在规圧 时间内完成检验，则应将表而分成几 个部进行检验。显像情况能够用肉眼 或放大镜进行观察。4 &后j青洗检验后，必须完全淸除工件上的渗透 材料，如果残余渗透材料在操作过程 中与其它材料混合后会导致腐蚀，则 必须进行后淸洗。能够采用如用水冲 洗.机械淸洁、溶剂浸泡等适当的 淸洁工作，来进行后淸洗。如果需要后淸洗，则检验后必须尽快 进行，以免显像剂凝固在工件上。5.显示评价5大面积颜料沉淀会掩盖缺陷显示， 是不合格的，这些区域

28、应淸洗干净并 重新检验。5.2明显的机械性不连续为其显现特of discontinuities are unacceptable and such areas shall be cleaned and reexamined5.2An indication is the evidence of a mechanical imperfection Only indications with major dimensions greater than 1/16in (1.6mm) shall be considered relevant.5.3Linear indications are those

29、 indications in which the length is more than three times the width Rounded indications are indications which are circular or ellipsoidal with the length less than three times the width.5.4Any questionable or doubtful indications shall be reexamined to determine whether or not they are relevant. Sur

30、face conditioning may proceed before the reexamination5.5The indication of a discontinuity may be larger than the discontinuity that causes it; however, the size of the indication is the basis of acceptance or rejection.6. Acceptance StandardsThe following relevant indications are unacceptable:a. an

31、y cracks or relevant linear indications;b.relevant rounded indications greater than 3/16in. (4.8mm);c.four or more relevant rounded indications in a line separated by 1/16 in(1.6mm) or less (edge to edge);征，只有在显示主要尺寸大于1/16英 寸(1.6mm)时,才是缺陷显示。5.3线性缺陷是指长度大于三倍宽度 的缺陷。而形缺陷是指长度小于3倍 宽度的圆形或椭圆形缺陷。5.4任何有疑问或难以判断的显示，必 须重新检验以确认是否是缺陷显示， 重新检验前可先作表而修整。5.5缺陷显示可能大于缺陷本身，可是 以显示的尺寸作为合格与否的依据。6.合格标准下列缺陷显示为不合格：a 任一裂纹或相应的线性缺陷；b.大于3/16英寸